We provide emergency HVAC service across the Greater Houston metro, including communities in Harris County, Fort Bend County, Montgomery County, and Austin County. Whether you're in Katy, Sugar Land, The Woodlands, Kingwood, Humble, Baytown, Conroe, Pearland, or the surrounding areas, our team is available around the clock.

AC repair costs in Houston typically range from $150 to $600 for most common repairs, depending on what's involved. A capacitor replacement runs $150 to $300. A refrigerant recharge with leak repair ranges from $250 to $600 depending on the refrigerant type and leak location. A contactor replacement runs $150 to $350. Compressor replacement is the most expensive common repair, typically $1,200 to $2,500, and on older systems often makes replacement the more financially sound decision. Diagnostic fees apply to most service calls and are typically credited toward the repair cost.

In Houston, every 30 to 60 days is the recommended replacement interval for standard one-inch filters in most homes. Houston's long cooling season means systems run significantly more hours per year than in cooler climates, and the Gulf humidity accelerates the rate at which filters accumulate biological material alongside dust and debris. Homes with pets, allergy sufferers, or older ductwork should change filters closer to the 30-day mark. Thicker media filters — three to five inch — can go longer between changes but should still be inspected monthly during peak cooling season.

AC system sizing in Houston requires a proper load calculation — not a square footage rule of thumb. Houston's humidity, sun exposure, ceiling height, insulation levels, and window orientation all affect how much cooling capacity a home actually needs. An oversized system is one of the most common HVAC mistakes in the Houston area. It cools the air temperature quickly but shuts off before removing adequate humidity, leaving the home feeling damp and clammy. A properly sized system runs longer cycles, removes more moisture, and keeps the home more comfortable. Contact us for a proper load calculation before any system replacement.

The most common causes are low refrigerant from a system leak, a dirty or frozen evaporator coil restricting heat transfer, a condenser coil so fouled with debris it can't reject heat to the outside air, or a compressor losing capacity after years of sustained operation in Houston's demanding climate. A system that's running but not cooling is working harder than it should and putting additional wear on components with every hour it runs. The problem won't resolve on its own and typically gets worse without diagnosis and repair.

In Houston, most residential AC systems last 12 to 17 years with regular maintenance. The long cooling season — eight to nine months in most years — means Houston systems accumulate significantly more operating hours per year than systems in moderate climates, which accelerates wear on compressors, motors, and electrical components. Systems that receive annual maintenance consistently tend to reach the upper end of that range. Systems that are rarely serviced often need major repairs or replacement well before 12 years. If your system is past 12 years and needs a significant repair, replacement is worth serious consideration.

The U.S. Department of Energy recommends 78 degrees when you are home and 85 degrees when you are away during summer. In Houston's humidity, comfort depends as much on indoor humidity levels as on temperature. A system that's properly sized and well maintained will remove adequate moisture while maintaining the set temperature, making 78 degrees feel genuinely comfortable. A system that's oversized or losing efficiency may maintain the temperature but leave indoor humidity elevated, making the home feel warmer than the thermostat reads. If 78 degrees feels uncomfortable in your Houston home, humidity management rather than a lower thermostat setting is usually the more effective solution.

Yes. Even new systems benefit from annual maintenance, and most manufacturer warranties require documented annual service to remain valid. For new Houston-area systems specifically, the first few years of operation are when installation issues — an incorrect refrigerant charge, a condensate drain that wasn't properly sloped, ductwork that wasn't fully sealed at commissioning — typically surface. An annual tune-up catches these before they cause damage or reduce system life. Manufacturer warranty protection alone makes the first-year maintenance visit worthwhile.

In Houston, indoor humidity complaints with a running AC system are almost always caused by one of three things. The system is oversized and short cycling — it cools the air temperature quickly and shuts off before running long enough to remove adequate moisture. The system is losing refrigerant capacity from a leak, which reduces its ability to dehumidify even when it maintains temperature. Or the system is in good condition but the home's humidity load simply exceeds what the AC cycle alone can manage, which is common in waterway-adjacent communities like Kingwood, Atascocita, Baytown, and Crosby. A whole-home dehumidifier operating independently of the AC cycle is the most effective solution for persistent indoor humidity in the Houston area.

The general rule is the 5,000 rule — multiply the system's age in years by the estimated repair cost. If the result exceeds $5,000, replacement is typically the better financial decision. A more practical approach considers three factors together: system age, repair history, and the nature of the current repair. A system under ten years old without major repair history is almost always worth repairing. A system past fifteen years with a compressor failure, evaporator coil leak, or repeated refrigerant loss is usually past the point where continued repair is financially sound. We provide a straightforward cost comparison for both paths so the decision is based on your specific situation.

Multipoint AC & Heating provides AC repair, AC installation and replacement, furnace repair and installation, heat pump repair and installation, ductless mini split installation and service, duct work repair and sealing, indoor air quality solutions including whole-home dehumidification and UV germicidal systems, HVAC maintenance plans, and 24/7 emergency HVAC service. We serve communities throughout Greater Houston including Harris County, Fort Bend County, Montgomery County, and Austin County.

Yes. Multipoint AC & Heating provides 24/7 emergency AC repair and heating service throughout Greater Houston, including nights, weekends, and holidays. We serve Harris County, Fort Bend County, Montgomery County, Austin County, and surrounding areas. If your AC has stopped working or your heating system has failed, contact us any time and we will dispatch a technician to your location.

A standard AC tune-up typically takes 60 to 90 minutes for a single system. During that time we clean the evaporator and condenser coils, check refrigerant charge, test electrical components, clear the condensate drain, inspect blower operation, and verify thermostat function. Homes with multiple systems or systems that haven't been serviced in several years may take longer. We recommend scheduling in March or April before Houston's heavy cooling season begins, when scheduling is easier and any issues found can be addressed before the system is running under peak load.

A complete AC system replacement in Houston typically ranges from $4,500 to $12,000 depending on system size, efficiency rating, brand, and whether ductwork modifications are needed. Standard single-stage systems at the lower efficiency range start around $4,500 to $6,500 installed. Mid-efficiency two-stage systems run $6,500 to $9,000. High-efficiency variable-speed systems range from $9,000 to $12,000 or more. The right system for your home depends on square footage, existing ductwork condition, and your long-term energy cost goals. We provide detailed quotes before any work begins with no hidden fees.

Rising energy bills in Houston without a change in usage habits usually point to one of a few HVAC-related causes. A dirty evaporator or condenser coil forces the system to run longer to achieve the same cooling. Low refrigerant reduces efficiency and causes the system to run continuously. An aging system past ten or more years of service loses efficiency gradually as components wear. Duct leaks allow conditioned air to escape into attic spaces before it reaches the living area. In Houston's long cooling season, even a small efficiency loss compounds into a significant energy cost difference over the course of the summer.